title: A compound containing substituted indole ligand from a hyperaccumulator Sedum alfredii Hance under Zn exposure.
abstract: Sedum alfredii Hance is a fast-growing and high-biomass zinc (Zn) hyperaccumulator native to China. A compound containing substituted indole ligand was isolated from this Zn hyperaccumulator plants by sonication/ethanol extraction, macroporous resin column as well as preparative HPLC (P-HPLC). Hydroponic experiment showed that the concentrations of both Zn and the compound containing substituted indole ligand were remarkably increased in stems and leaves of both hyperaccumulator and non-hyperaccumulator as Zn rising from 0.5 to 50 micromol L(-1), with much more in the stems of hyperaccumulator than non-hyperaccumulator. At 50 micromol L(-1) Zn, hyperaccumulator grew normally but its non-hyperaccumulator suffered from strongly Zn-induced toxicity. This suggested that there was a positive correlation between the compound containing substituted indole ligand and Zn concentration in shoots of hyperaccumulator S. alfredii.
authors.affiliation: Key Laboratory of Environmental Remediation and Ecological Health, Ministry of Education, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Xing
authors.forename: Hongyun
authors.initials: H
authors.lastname: Peng
authors.forename: Lingling
authors.initials: L
authors.lastname: Gao
authors.forename: Ancheng
authors.initials: A
authors.lastname: Luo
authors.forename: Xiaoe
authors.initials: X
authors.lastname: Yang
mesh_terms: D001673:Biodegradation, Environmental; D018533:Biomass; D002681:China; D002851:Chromatography, High Pressure Liquid; D018506:Gene Expression Regulation, Plant; D018527:Hydroponics; D007211:Indoles / Q000302:isolation & purification* / Q000378:metabolism; D008024:Ligands; D018515:Plant Leaves / Q000187:drug effects; D018517:Plant Roots / Q000737:chemistry / Q000187:drug effects; D018547:Plant Stems / Q000187:drug effects; D031963:Sedum / Q000737:chemistry* / Q000187:drug effects / Q000502:physiology; D015032:Zinc / Q000378:metabolism / Q000633:toxicity*
chemical_list: D007211:Indoles; D008024:Ligands; C030374:indole; D015032:Zinc